The space mirrors and the gas lanterns together would still leave the settlements with less than half the sunlight Mars got, but it was the best they could do. That was life in the outer solar system, a somewhat dim business all around, Zo judged. Even gathering that much light would require the manufacture of a massive infrastructure; and this was where the Martian delegation came in. Jackie had arranged to offer a lot of help, including more fusion behemoths, more gas lanterns, and also Martian experience in space mirrors and terraforming techniques generally, through an association of aerospace co-ops interested in obtaining more projects now that the situation in Martian space was largely stabilized. They would contribute capital and expertise, in return for preferential trade agreements, supplies of helium3 culled from Jupiter’s upper atmosphere, and the opportunity to explore, mine, and possibly join terraforming efforts on Jupiter’s clutch of smaller moons, all eighteen of them.

Invested capital, expertise, trade; this was the carrot, and a big one. Clearly if the Galileans accepted it, the tendrils of association with Mars would be there, and Jackie could then follow that up with political alliances of various sorts; and pull the Jovian moons into her web. This eventuality was as clear to the Jovians as it was to anyone, however, and they were doing what they could to get what they wanted without giving too much in return. No doubt they would soon be playing the Martians off against similar offers from the Terran exmetas and other organizations.

This was where Zo came in; she was the stick. Public carrot, private stick; this was Jackie’s method, in all phases of life.

Zo revealed Jackie’s threats in tiny indirect glimpses, to make them seem even more threatening. Brief meeting with officials from Io: the ecopoetic plan, Zo said to them, casually, seemed far too slow. It would be thousands of years before their bacteria chewed the sulfur into useful gases, and meanwhile Jupiter’s intense radio field, which enveloped Io and added to its problems, would mutate the bacteria beyond recognition. They needed an ionosphere, they needed water, it was possible they even needed to think about pulling the moon out into a higher orbit around their great gas god. Mars, home of terraforming expertise and the healthiest wealthiest civilization in the solar system, could help them with all that, give them special help. Or even discuss with the other Galileans the notion of taking over the project, in order to bring it up to speed.